Improvement in ring-and-traveler spinning-frames



J. BIRKENHEAD. v I Ring and Traveler Spinning-Frame.

N0. 219,613. Patented Sept. 16, 1879 N. PETERS. PMOTOLITHOGHAFHER, WASHINGTDMID C.

UNITED STATES PATENT OFFICE.

JOHN BIRKENHEAD, OF MANSFIELD, MASSACHUSETTS.

IMPROVEMENT IN RlNCi-AND-TRAVELER SPINNING-FRAMES.

Specification forming partof Letters Patent No. 219,613, dated September 16, 1879 application filed July 7, 1879.

To all whom it may concern Be it known that I, JOHN BIRKENHEAJ), of Mansfield, of the county of Bristol and State of Massachusetts, have invented a new and useful lm provement in Itin g and Traveler Spinning-Frames; and do hereby declare the same to be described in the following specification, and represented in the accompanying drawings, of which- Figure 1 is a front elevation, Fig. 2 a vertical and longitudinal section, and Fig. 3 a horizontal and transverse section, of a spinning-frame with my invention, which relates to mechanism for operating or moving the guides through which the yarns pass in going from the drawing-rollers to the travelers. I have found that when the guide-support rail of a ring-and-traveler spinning-frame has been supported by devices applied to it and the ring-rail so as to be movable with and by the latter, the weight of the guide-rail and its supports being borne by the ring-rail, the proper laying of the yarns on the bobbins is liable to be injuriously affected -in other words, that a small ridge is apt to be formed in each yarn-load, or too much winding of yarn in one place in the load of each bobbin is very liable to occur. To overcome this difficulty 1 haveapplied to the guide-rail means of counterbalancing or nearly counterbalancing it and its supports; but with my present invention the said guide-rail is neither directly nor indirectly supported by the ring-rail, but traverses vertically independently thereof, andis operated by mechanism so separated from or independent of the ring-rail or its operative mechanism as to exert no influence on either to cause the ring-rail at the extreme of atraverse thereof to be arrested long enough for the formation of any such ridges in the yarn-loads of the bobbins as mentioned.

In carrying out myinvention, I support the guide-rail by toothed racks extending down from it at its ends and engaging with gears carried by a horizontal shaft, and I combine therewith mechanism for revolving such shaft to effect upward motion of the guide-rail, and

--subsequently admit of it being lowered or dropped to a lower position. The racks are so made that after the guide-rail may have attained a certain altitude it cannot be raised higher by the racks, though their operative gears may continue in revolution with the shaft.

In the drawings, A denotes the frame of a ring-spinning machine; B, the ring-rail, and O the guide-support rail, the latter having the yarn-guidesa a projecting from it in the usual manner.

D is a shaft of the set of draw rollers, such shaft being supposed to be provided with the usual means of revolving it. At the middle of this shaft is a screw, 1), that engages with a worm-gear, c, fixed to a Worm or screw, (1, which, with the said gear 0, is supported on an arbor, e, projecting from a post, f. V

The worm cl engages with a worm-gear, g, fixed on the upper part of a shaft, h, which, stepped at its foot in a bracket, 2', is supported just below the worm-gear by a movable box or bearing, 70. At its lower part there is fixed upon the shaft a bevel-gear, l, that engages with another such wheel, m, fixed on the shaft E, which, extending across the frame and supported in suitable bearings, carries two gears, 0 o, to engage with the two short toothed racks F F, that extend down from the guiderail or project from guidearms G G there of, each of which arms extends between two "ertical guide-bars, H H, fixed to the side of the frame.

From this it will be seen that on the shaft D being revolved motion will be imparted to the shaft E, to cause the guide-rail, by means of the racks and their operative piuions 0r gears, to be forced upward.

The boxk, that supports the shaft h, is movable, to enable the shaft to be moved so as to draw the gear at the head of the shaft out of engagement with its operative screw, in order that the guide-rail, by its own weight and that of the racks, may drop back or downward to a position for it again to commence an upward traverse.

The said box It has a spindle, s, projecting from it through a standard, 19, and there is be tween the box and standard, and encompass ing the spindle, a helical spring, g, which serves to press the shaft-box in a direction away from the standard.

Just prior to the operation of doffing the bobbins the attendant on the machine is to draw back the spindle s, so as to allow the guide-rail to fall to its lowermost positionthat is, so as to rest on the upper ends of the two sets of guide-bars H H.

The mechanism for actuating the ring-rail is shown as consisting not only of a heart-cam, t, fixed on a shaft, in, but of a shaft, n, provided with two arms, 20 00, one of which bears on the heart-cam by means of a stud, 2, while the other sustains the rin g-rail by a slide-bar, o extending down from it to the said arm. The ring-rai1 is supposed to be provided with the usual appliances for supporting and guiding it in its traverse. It will be seen that the mechanism which operates the ring-rail performs no office in causing it to actuate the guide-rail, or in any way aids in operating mechanism for moving such guide-rail.

What I claim as my inventionis as follows:

1. In combination with the ring-rail and its operative mechanism, the yarn-guide rail, movable relatively thereto, as described, and provided with actuating mechanism-viz., the racks F, pinions 0, sh aft E, bevelgears Z m, shaft ter to effect upward motion of the guide-rail,

and subsequently to admit or allow of it dropping to its lowermost position, as described, such mechanism, as represented, consisting of the draw-roller shaft D, screws 12 and d, wormgears c and g, arbor 6, post f, shaft h, movable bearing k, bracket 2', bevel-gears land m, spindle 8, standard 2), and spring q, all arranged and applied substantially as set forth.

J O HN BIRKENHEAD.

Witnesses:

R. H. EDDY, W. W. LUN'I. 

